Configuring netflow – top talkers, etc

Configuring netflow – top talkers, etc

Netflow can be configured in internal or external interface. 

ip flow-cache entries 2000

ip flow-cache timeout active 30

<On interface:  eg int g0/0>

ip flow ingress ip flow egress (or) ip route-cache flow

ip flow-top-talkers

top 50

sort by  (Note: This means sort by bytes – command is correct.)

cache-timeout 600000

To query netflow:  sh ip flow top-talkers

Typical output: 

Router#sh ip flow top-talkers

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